${\mathrm{CH}}_3\mathrm{MgBr}\underset{{\mathrm{H}}_2\mathrm{O}}{\overset{\mathrm{HCHO}}{\to }}{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\stackrel{{\mathrm{SOCl}}_2}{\to }{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}\stackrel{\mathrm{alc}.\mathrm{KOH}}{\to }{\mathrm{CH}}_2={\mathrm{CH}}_2\stackrel{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\to }{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

CH₃CH₂OH is a functional isomer of CH₃-O-CH₃.

It cannot exhibit metamerism, chain and positional isomerism.